.main {
    position: relative;  
    margin: 0 auto;
    width: 1240px;  
    height: 480px;
}
.main .banner {
    position: relative;
    /* background:url(../images/banner.jpg) no-repeat; */
    height: 480px;     
    width: 1240px;    
    background-position: 50%;
}
.main .banner ul li img {
    position: absolute;     
    height: 480px;
    width: 1366px;
    left: -60px;
    top: 0;

    
}
.main .banner .left-arrow {
    position: absolute;
    left: 284px;
    top: 240px;
    cursor: pointer;
    transform: rotate(-90deg);
    opacity: .5;
}
.main .banner .right-arrow {
    position: absolute;
    right: 10px;
    top: 240px;
    cursor: pointer;
    transform: rotate(90deg);
    opacity: .5;
}
.main .banner .left-arrow:hover{
    opacity: 1;
}
.main .banner .right-arrow:hover{
    opacity: 1;
}
.main .banner ol {
    position: absolute;
    left: 712px;
    bottom: 10px;
}
.main .banner ol li {
    float: left;
    height: 10px;
    width: 10px;
    border: 2px solid #C0C0C0;
    border-radius: 50%;
    margin: 0 5px;
}
.main .banner ol .current {
    border:2px solid #00C3F5;
    background-color: #00C3F5;
}
.main ul {
    position: absolute;
    left: 0px;
    top: 0;
    width: 244px;
    height: 480px;
    background-color:rgba(255,255,255,.6);
}
.main ul li {
    height: 56px;
    margin-left: 30px;
}
.main ul li a {
    font-size: 14px;
}
.main ul li:nth-child(1) {
    margin-top: 35px;
}